X-Git-Url: http://git.droids-corp.org/?p=protos%2Flibecoli.git;a=blobdiff_plain;f=lib%2Fecoli_node.h;h=9bf459dd3a82f77abf84177a3a2987a82f99ba1e;hp=6fede5978f0556e7c5fd13fdbe8ace0bb433c346;hb=1d655de6043b607f39888c1bb88f72d071f2d49a;hpb=2be188c2858fa975d6b2ba3f91405d260d3c5b75

diff --git a/lib/ecoli_node.h b/lib/ecoli_node.h
index 6fede59..9bf459d 100644
--- a/lib/ecoli_node.h
+++ b/lib/ecoli_node.h
@@ -132,6 +132,14 @@ const struct ec_node_type *ec_node_type_lookup(const char *name);
  */
 void ec_node_type_dump(FILE *out);
 
+enum ec_node_free_state {
+	EC_NODE_FREE_STATE_NONE,
+	EC_NODE_FREE_STATE_TRAVERSED,
+	EC_NODE_FREE_STATE_FREEABLE,
+	EC_NODE_FREE_STATE_NOT_FREEABLE,
+	EC_NODE_FREE_STATE_FREEING,
+};
+
 struct ec_node {
 	const struct ec_node_type *type;
 	struct ec_config *config;    /**< Generic configuration. */
@@ -139,6 +147,11 @@ struct ec_node {
 	char *desc;
 	struct ec_keyval *attrs;
 	unsigned int refcnt;
+	struct {
+		enum ec_node_free_state state; /**< State of loop detection */
+		unsigned int refcnt;    /**< Number of reachable references
+					 *   starting from node beeing freed */
+	} free; /**< Freeing state: used for loop detection */
 };
 
 /* create a new node when the type is known, typically called from the node